/Engine/Source/Runtime/MeshDescription/Public/MeshDescription.h
Remaps polygon groups according to the supplied map
void RemapPolygonGroups ( const [TMap](API\Runtime\Core\Containers\TMap)< [FPolygonGroupID](API\Runtime\MeshDescription\FPolygonGroupID), [FPolygonGroupID](API\Runtime\MeshDescription\FPolygonGroupID) > & Remap )